Linux System Administrator jobs in California

Linux Systems Administrator/System Engineer

San Jose, California

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Today

Position Information Job Title: Linux System Admin Contract Period: 6 months + Working Location: San Jose CA 95134 Work Hours: 9am ~ 6pm Local Time Pay $38 - $42 JD Details Position Summary: The DevOps/System Engineer is responsible for effective installation/configuration, operation, and maintenance of systems hardware and software and related infrastructure. The system administration tasking will be focused on improving the stability and performance of the system, maintaining and improving th

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Contract

$38.00 - $42.00 per hour

Senior Linux Systems Administrator

Long Beach, California

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Today

Vast is developing next-generation space stations and space infrastructure using an incremental, hardware-rich, and low-cost approach. Vast is rapidly developing its multi-module Haven Station to ensure a continuous human presence in space for America and its allies, enabling advanced microgravity research and manufacturing, and unlocking a new space economy for government, corporate, and private customers. Haven Demo's 2025 success made Vast the only operational commercial space station company

Full-time

USD 123,000.00 - 174,600.00 per year

Linux Systems Administrator I

Folsom, California

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Today

Overview AMERICAN SYSTEMS is an employee-owned federal government contractor supporting national priority programs through our strategic solutions in the areas of Information Technology, Test & Evaluation, Engineering & Analysis, and Training. Responsibilities An average day: As a Linux Systems Administrator I, you will provide support for our enterprise-level Linux-based systems and will assist with installation, configuration, testing, and management of the operating systems, hardware, and

Full-time

USD 61,324.37 - 95,680.00 per year

System Admin- MS365 & Linux (Evening Shift)

Fremont, California

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24d ago

Maxonic maintains a close and long-term relationship with our direct client. In support of their needs, we are looking for aSystemAdmin-MS365 & Linux(Evening Shift). Job Description: Job Title:SystemAdmin-MS365 & Linux(Evening Shift) Job Type:Fulltime Job Location:Fremont, CA Work Schedule:Onsite 5 days a week from 6pm to 2am PT Description: TheSystems Engineering team is responsible for architecting, building, automating, and managing our server Infrastructure at our campus in Fremont, CA an

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Full-time

Depends on Experience

Senior Linux Administrator

Remote or Monroe, Louisiana

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Today

RESPONSIBILITIES: Kforce has a client that is seeking a Senior Linux Administrator in Monroe, LA. Summary: We are seeking a Senior Linux Systems Administrator to design, deploy, secure, and support Linux-based infrastructure for a classified federal program. This role requires an experienced engineer who can build environments from the ground up and manage them through their full lifecycle, including virtualization, security, automation, monitoring, authentication services, and application supp

Full-time

$82,000 - $121,000 annually

Senior Linux Administrator (Active Clearance)

Remote

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Today

Lumen is the trusted network for the AI-powered world, connecting people, data, and applications through our expansive fiber network and connected ecosystem. We enable secure, high-performance connectivity across cloud, edge, and AI workloads for enterprises, governments, and communities. At Lumen, you'll work on infrastructure customers rely on today and build for what's next, where performance, security, and resilience matter. This is a high accountability environment where bold ideas drive

Full-time

USD 82,969.00 - 110,625.00 per year

Linux System and Security Analyst

Culver City, California

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Today

Company Overview At Motorola Solutions, we believe that everything starts with our people. We're a global close-knit community, united by the relentless pursuit to help keep people safer everywhere. We build and connect technologies to help protect people, property and places. Our solutions foster the collaboration that's critical for safer communities, safer schools, safer hospitals, safer businesses, and ultimately, safer nations. Connect with a career that matters, and help us build a safer

Full-time

USD 80,000.00 - 90,000.00 per year

System Administrator

Dana Point, California

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2d ago

Location: NAS Point Mugu, CA Security Clearance Requirement: Top Secret Telework Eligible? No, work will be performed on site at NAS Point Mugu What You'll Do: Support mission-critical Navy training systems at NAS Point Mugu, CA! As a System Administrator, you will secure, sustain, and optimize complex DoD environments that directly enable warfighter readiness. This is a high-impact role for a technically strong professional who thrives in cybersecurity-focused, mission-driven operations.

Full-time

USD 115,000.00 - 145,000.00 per year

Test Engineer - Android/Linux Embedded System Performance and Stability

Palo Alto, California

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Today

Test Engineer Android/Linux Embedded System Performance and Stability Day-to-Day Responsibilities Execute stability, endurance, and performance tests on embedded software systems.Analyze logs, crash reports, performance metrics, and test results to identify software issues.Investigate failures and perform root cause analysis.Work directly with software developers to drive bugs through resolution.Develop and maintain Python scripts to improve automation and testing efficiency.Enhance existing sta

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Full-time

USD70 - USD85 per hour

Senior System Administrator

Los Angeles, California

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Today

Advanced Reentry Technologies Who We Are: Inversion is an aerospace and defense company pioneering advanced reentry technology to enable next-generation capabilities from space. By combining high-performance materials, precision aerodynamics, and mission-driven autonomy, Inversion is transforming reentry into an operational capability for an entirely new class of missions. The company's highly maneuverable reentry spacecraft, Arc, is designed for rapid global cargo delivery, hypersonic testin

Full-time

USD 97,000.00 - 154,000.00 per year

System/Network Administrator - Active TS/SCI Required

Carlsbad, California

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Today

About us One team. Global challenges. Infinite opportunities. At Viasat, we're on a mission to deliver connections with the capacity to change the world. For more than 35 years, Viasat has helped shape how consumers, businesses, governments and militaries around the globe communicate. We're looking for people who think big, act fearlessly, and create an inclusive environment that drives positive impact to join our team. What you'll do Keeping our systems, technology, and employees safe is a ke

Full-time

USD 121,000.00 - 191,000.00 per year

System Administrator

Los Angeles, California

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Today

Cosm is a global technology company that brings experiences to life in immersive environments. We help our partners create spaces and content that blur the lines of real and virtual across three primary markets: Sports and Entertainment, Science and Education, and Parks and Attractions. Cosm was born from the fusion of some of the greatest innovators in the history of technology. Evans & Sutherland, Spitz, Inc., and Cosm Immersive combined forces to power the immersive experiences of the future

Full-time

USD 60.00 - 70.00 per hour

Network/System Administrator (Net/Sys Admin) III - Gunsan, South Korea

Hayward, California

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Today

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret/SCI Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: Network Administrator, Network Architecture, Network Engineering Certifications: CASP CE+ - CompTIA - CompTIA, CCNP - Cisco - Cisco Experience: 5 + years of related experience ship Required: Yes Job Description: LOCATION : Gunsan, Sou

Full-time

USD 93,662.00 - 108,560.00 per year

Senior Cloud GIS System Administrator

Remote

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Today

Senior Cloud GIS System Administrator Location: Remote Description: HigherEchelon is seeking a Senior Cloud GIS System Administrator to serve as the technical owner of an enterprise ArcGIS platform, with accountability for the servers, cloud resources, security configuration, and availability of the environment. The position additionally leads the technical migration of that platform into a consolidated government cloud environment. This is the senior technical position on the program team.

Full-time

Windchill Infrastructure & System Administrator

Remote

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Today

This position is contingent upon contract award. This position requires an active U.S. national security clearance and the ability to obtain one. To learn more about the security clearance process please access this link. Additionally, travel may be required to customer and subcontractor sites as well as other office locations. Lyntris is a defense technology company that connects sensing to action across the connected battlespace. Lyntris brings together the talents of Accelint and Vitesse te

Full-time

USD 120,000.00 - 150,000.00 per year

System Administrator Expeditionary Systems (OpAI)

San Diego, California

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Today

Job ID: 2615599 Location: San Diego, CA, US Date Posted: 2026-08-14 Category: Software Subcategory: SW Engineer Schedule: Full-Time Shift: Day Job Travel: Yes - 10% of the time Minimum Clearance Required: Secret Clearance Level Must Be Able to Obtain: TS/SCI Potential for Remote Work: ORA_ON_SITE Description SAIC is seeking a highly experienced System Administrator Expeditionary Systems (OpAI) to contribute to the integration of AI capabilities into expeditionary systems, including sen

Full-time

USD 120,001.00 - 160,000.00 per year

Senior System Administrator (MSO)

Livermore, California

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Today

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: IT Networking, Networking, Solarwinds, Wireshark Certifications: None Experience: 8 + years of related experience ship Required: Yes Job Description: Systems Administrator/Mission Support Operator - $10K Sign-on bonus *Classified work and therefore

Full-time

USD 111,155.00 - 150,385.00 per year

Senior System Administrator / Mission Support Operator (MSO)

Livermore, California

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Today

This is an unpaid fellowship through the Department of War (DoW) SkillBridge Program. The fellow selected for this role will not receive compensation or benefits from GDIT and will not be an employee, agent or contractor of GDIT but rather will remain an employee of the DoW and will receive compensation and benefits through the DoW. Type of Requisition: Regular Clearance Level Must Currently Posses: Top Secret/SCI Clearance Level Must Be Able To Obtain: Top Secret/SCI Public Trust/Other Requ

Full-time

System Administrator II

San Diego, California

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Today

Lyntris is a defense technology company that connects sensing to action across the connected battlespace. Lyntris brings together the talents of Accelint and Vitesse teams under one mission, with each contributing deep expertise within their domain. Combining differentiated hardware, software and mission expertise, Lyntris helps customers sense threats, make sense of complex conditions and act with greater speed, precision and confidence in contested environments. Lyntris supports U.S. and allie

Full-time

USD 110,000.00 - 140,000.00 per year

Senior System Administrator

Irvine, California

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Today

About DZYNE DZYNE Technologies is leading the future of autonomous defense. Based in Irvine, California, we develop and manufacture advanced airborne and ground-based defense solutions deployed in over 50 countries. Backed by U.S. Government Programs of Record, our technologies are field-proven, scalable, and production-ready. We're growing fast and looking for innovators ready to make an impact. At DZYNE, you'll join a culture built on collaboration, integrity, and purpose. We celebrate wins,

Full-time

USD 125,000.00 - 145,000.00 per year

Linux System Administrator jobs in California, USA